1997A&A...321L..39L

Query : 1997A&A...321L..39L

1997A&A...321L..39L - Astronomy and Astrophysics, volume 321, L39-42 (1997/5-3)

Discovery of CI around 51 Ophiuchi.

LECAVELIER DES ETANGS A., VIDAL-MADJAR A., BACKMAN D.E., DELEUIL M., LAGRANGE A.-M., LISSAUER J.J., FERLET R., BEUST H. and MOUILLET D.

Abstract (from CDS):

We present the discovery of cold CI in the 51 Oph environment, with a column density of N=5x1013cm–2 and temperature T≃20K. This is the first β Pic-like star other than β Pic with simultaneous detection of cold dust and gas. The CI/infrared continuum ratio and consequently the gas/dust ratio are similar to the β Pic ones. Since CI has a very short lifetime, it must be continuously replenished, probably by molecular gas dissociation. This provides evidence for the presence of evaporating bodies. A new upper limit on CO content is also given.

Abstract Copyright: ∼

Journal keyword(s): stars: individual: 51 Oph - circumstellar matter - planetary systems - line: profiles

VizieR on-line data: <Available at CDS (J/A+A/321/L39): table1 table2 tables.tex>

Simbad objects: 2

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Number of rows : 2
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 * bet Pic PM* 05 47 17.0876901 -51 03 59.441135 4.13 4.03 3.86 3.74 3.58 A6V 1903 1
2 * c Oph Be* 17 31 24.9538710166 -23 57 45.514802684 4.75 4.81 4.81 4.74 4.72 A0V 273 0

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